CN108415629A

CN108415629A - A kind of device and its manufacturing method combining capacitance touching control sensor

Info

Publication number: CN108415629A
Application number: CN201810103980.6A
Authority: CN
Inventors: 贾斯汀·安东尼·察尔其; 大卫·布伦特·咖尔德
Original assignee: Crystal Gate Technology (china) Co Ltd
Current assignee: Crystal Gate Technology (china) Co Ltd
Priority date: 2017-02-09
Filing date: 2018-02-02
Publication date: 2018-08-17
Anticipated expiration: 2038-02-02
Also published as: CN108415629B; GB2559569B; US20180224964A1; US10235002B2; GB201702111D0; GB2559569A

Abstract

A kind of device and its manufacturing method combining capacitance touching control sensor, wherein device include one group of intersection X and Y electrode, and crosspoint forms the two-dimentional node array for limiting touch sensitive regions.In addition to the main electrode ridge of intersection, referred to as zeroth order electrode branches, the electrode also has higher order branch, some of branches interlaced.By changing the size of the electrode branches of such as width and length, the total area of X and Y electrode can be changed relatively independently.Thus it is possible to which the self-capacitance for manufacturing wherein X and Y electrode has certain proportion（Such as 1）Electrode pattern, to compensate the ratio of width to height of touch sensitive regions and/or with certain absolute value, such as in order to avoid make the sensor touch-control sensing controler to be connected overload.

Description

A kind of device and its manufacturing method combining capacitance touching control sensor

Technical field

The present invention relates to the capacitance touching control sensors of position sensing, especially, but not merely, are related to and display collection At to form the capacitance touching control sensor of touch screen.

Background technology

Hereinafter referred to as the capacitance touching control sensor of touch sensing can on the surface detection object (such as user's Finger or stylus) close or touch-control presence and position.Touch sensing is usually with display combinations to generate touch screen. In miscellaneous equipment, touch sensing not with display combinations, for example, the Trackpad of laptop.Touch screen allows users to By graphic user interface (GUI) directly with the content interaction that is shown on screen, rather than indirectly using mouse or Trackpad into Row is interactive.For example, touch sensing can be attached to or as mobile phone, one of tablet computer or laptop Point.

Touch sensing can be divided into grid and matrix-type.In matrix-type, electrod-array is disposed in electric each other On the surface of isolation so that each electrode in array provides the touching signals of its own.Therefore, matrix form touch sensing from The case where so being suitable for needing touch-sensitive button array, such as in control interface, data input screen or calculator.In grid In type, there are two groups to be generally configured to orthogonal parallel pole, commonly referred to as X and Y electrode.Multiple nodes are by X and Y electricity Extremely to crosspoint (as illustrated as a plan view) defined, the quantity of interior joint is the product of the quantity of X electrode and Y electrode.Net Format touch sensing is commonly used in mobile phone, the touch screen of drawing board etc..In previous design, X and Y electrodes are by cloth It sets in the both sides of dielectric layer, therefore they offset by the thickness of dielectric layer perpendicular to each other, vertical meaning is to be orthogonal to stacking The plane of layer.In early design, in order to reduce stack thickness, X and Y electrode are deposited over the same side of dielectric layer, i.e., It is short-circuit between X and Y electrode to be avoided in the dielectric material film of intersection local deposits in simple layer. This single electrode layer design is disclosed in US2010/156810A1, entire contents have been incorporated by reference herein.

Touch sensing is further divided into self-capacitance and mutual capacitance type.

In the measurement of self-capacitance, electrode of the measured capacitance below dielectric touch panel and touch-control finger, stylus Deng between, or more precisely, the touch-control increases the capacitance of the electrode to forming one of touch-control IC measuring circuits The influence of the charging of the measurement capacitor divided.Therefore, the finger and electrode are considered as with the touch panel For the pole plate of the capacitor of dielectric.

In the measurement of mutual capacitance, adjacent electrode forms nominal electricity to being disposed in the lower section of touch panel Capacitor plates.Touch-control person can be effective dielectric material (such as dry finger or plastics stylus), or at certain with touch control object May be conductive (such as wet finger or metal contact pilotage) in the case of a little by replacing environment (it is in most cases sky Gas, but may be water or certain other gases or liquid) change with electrode to relevant capacitance.One of electrode centering is by driving Dynamic signal (such as train of pulse) driving, and this to another electrode senses drive signal.The effect of touch-control be decaying or Amplify the drive signal received at sensing electrode, that is, influences the quantity of electric charge collected at sensing electrode.Driving electrodes and sense The variation for the mutual capacitance surveyed between electrode provides measuring signal.It should be noted that in mutual capacitance grid sensor, exist by Driving electrodes are labeled as the convention of X electrode and sensing electrode as Y electrode, although the selection is random.One may is that compared with Label to be clearly commonly used is analogous to telecommunications symbol, by driving electrodes labeled as " Tx " of transmission, and by induced electricity Pole marks is denoted as " Rx ", although the label is certainly specific to the measurement of mutual capacitance.

Currently used for mobile phone industrial standard touch screen dependent on operate identical touch sensing with carry out self-capacitance and Mutual capacitance measures, because being both conducive to obtain the additional information that can be used for post-processing about touch-control to improve annotation Reliability.For example, mutual capacitance, which measures, has higher noise resisting ability, and self-capacitance measurement is easier to annotate, and can be direct Measure the presence of moisture.

Currently, most common integrated with the display technology for forming touch screen with touch sensing is thin film transistor (TFT) (TFT) Liquid crystal display (LCD) and Organic Light Emitting Diode (OLED) display, and touch sensing design is mesh design, quilt Operation is measured with carrying out self-capacitance and mutual capacitance.The mesh design pattern of X and Y electrode designs in some manner, with most suitably Take the requirement that Homes is competed for, such as position-sensitivity, lateral field uniformity (mutual capacitance measurement), faster charge time etc..In particular, Mutual capacitance is the largest in X and Y line infalls.In order to keep the capacitance low as much as possible, it is common practice to X and Y lines be made to intersect Place attenuates, to keep the area that intersection is formed by capacitor as small as possible.However, this has cost, these pinch formation Maximum resistive element, therefore the limiting factor of charging time rate can be become.Far from the crosspoints XY, electrode extend to or it is more or The subregion for covering entire panel associated with node less is advantageous.The elongated area of these electrodes can be referred to as electricity Pole pad.The signal strength of self-capacitance measurement can be improved in pad with larger area, and mutual capacitance is measured, it is meant that Signal can be obtained by the touch-control of node subregion.Then, electrode pattern can usually combine thin crosspoint and intersect The electrode pad extended between point.

Figure 30 in attached drawing shows in plan view the electrode pattern for being used to mix certainly/mutual capacitance sensors currently popular Design, is referred to as argyle design in the art.US2010/156810A1 discloses such argyle design touch-control and passes Sensor.

The electrode pattern includes parallel x-ray row X2, X3, X4, X5 (hacures) Y line row Y3 parallel with orthogonal to that, Y4, Y5, Y6, Y7 (cross-hauling).X and Y lines intersect at node 28, and x-ray is located above Y lines, and wherein x-ray and Y lines is repaiied It is too narrow to corresponding width W_SXAnd W_SY.The vertical separation provided by dielectric layer or film is provided between intersection X and Y electrode.It should The area in crosspoint is exactly W_SX·W_SY.Each X electrode can be considered as having ridge 30, and each Y electrode can be considered as having Ridge 32.Far from bridge, electrode extend into because with X and Y at the square at 45 degree of angles due to be referred to as the square pad of diamond shape.In It is that each electrode is exactly a series of diamond shape pads being connected with each other with short bridge connector.One specific node has associated Panel sub-section, with node (X3, Y5) shown in frame 27 in figure.

In argyle design, the position of touch for being used as the benchmark in performance test is as follows：

On node (OnNode)：Touch-control ridge crosspoint 28；

On X (OnX)：Touch-control is the centre of a diamond shape at strong point with X electrode ridge 30, i.e., two phases of distance on X electrode ridge The farthest point in adjacent crosspoint, label is in figure；

On Y (OnY)：Touch-control is the centre of a diamond shape at strong point with Y electrode ridge 32, i.e., two phases of distance on Y electrode ridge The farthest point in adjacent crosspoint, label is in figure；

In not a node (OffNode)：Touch-control is apart from the farthest point of two adjacent X ridges and two adjacent Y ridges, labeled as figure In 29.

For argyle design, " OnX " or " OnY " touch-control indicates the lowest electric field strength measured for mutual capacitance, i.e., minimum The region of sensitivity.For other patterns, this saying may be summarized to be far between pairs of driving and sensing electrode For the touch-control of gap in the electric field strength of electrode interior, i.e. sensitivity is minimum.

Figure 31 A are the schematic cross-sectional in the plane of the stacking plane by touch panel, illustrate and are related to one To a other X (driving) and Y (sensing) electrode：The mutual capacitance of Xn, Yn measure.Electric field line is schematically shown with arrow curve.From Schematic diagram can be seen that highest in the neighbouring region in gap of the electric field strength of contact surface between X electrode and Y electrode, And reduce towards the inside of each electrode.

Figure 31 B are the schematic cross-sectionals in the same plane by touch panel identical with Figure 31 A, illustrate and are related to together The self-capacitance of a pair of of X and Y electrode Xn, Yn measure.Electric field line is schematically shown with arrow line.From schematic diagram as can be seen that across The electric field strength of node region is substantially constant.In other words, it is not present or only small transverse electric field is uneven.Also It should be noted that in self-capacitance pattern, the facet being confined to completely within one of X electrode pad (or Y electrode pad) Product touch-control OnX (or OnY), such as 31 (or 33) are being put, will not be that any Y electrode (or X electrodes) provides signal, therefore the Y The location information in direction (or X-direction) will be completely absent in signal.

Invention content

According to one aspect of the disclosure, a kind of device combining capacitance touching control sensor, described device are provided Including：

Touch panel, in upside with touch-control surface, in downside with inner surface, the touch panel is by dielectric material system At；

One group of X electrode is arranged in below the touch panel, has the zeroth order branch extended in the x-direction；

One group of Y electrode is arranged in below the touch panel, has the zeroth order point extended along the directions y for being different from the directions x Branch so that the zeroth order branch of the X electrode and the zeroth order branch of the Y electrode are intersected with each other in crosspoint, to form two Node array is tieed up, which define the touch sensitive regions on the touch panel, wherein the ratio of width to height of the touch sensitive regions is equal to or greatly In 4：3、3：2、8：5、16：9 and 8：At least one of 3,

Wherein, the ratio of the area of each X electrode covering and the area of each Y electrode covering is matched as described Within the 20% of the ratio of width to height of touch sensitive regions so that the self-capacitance of the self-capacitance of each X electrode and each Y electrode is extremely It is few roughly the same.

The electrode area ratio, i.e., the ratio in described X electrode region and the Y electrode region, meets for the touch sensitive area In ± 2%, ± 4%, ± 6%, ± 8%, ± 10%, ± 12%, ± 14%, ± the 16% and ± 18% of the ratio of width to height in domain extremely It is one few.

It should be noted that described the ratio of width to height is in most cases equal to the number ratio of X electrode row and Y electrode row.

In some embodiments, each node is related to the subregion limited by adjacent zeroth order X and Y electrode branch Connection, in every sub-regions, the ratio for the area that the area and the Y electrode of X electrode covering cover is at least roughly the same In the inverse of the ratio of width to height of the touch sensitive regions.

The area of X (Y) the electrode covering can be covered by carrying out following one or more steps in the Y (X) electrode The area of lid is changed with absolute value or relative value：Make zeroth order branch that there is different width in X and Y；Make X and Y At least one of zeroth order branch is provided with internal microstructure, such as cable, and the internal microstructure includes lacking conductive material Film micro area, the film micro area surrounded by conductive material；And X and Y zeroth orders branch is made to be provided with internal microstructure, such as Cable, the internal microstructure include lacking the film micro area of conductive material, and the film micro area is surrounded by conductive material, wherein It is different with the ratio of the film micro area in Y-branch in zeroth order X.

In some embodiments, X electrode and Y electrode further include respectively the higher order branch of n ranks, wherein each branch is limited to Its subregion developed, wherein exponent number n is positive integer, and n-th order branch is developed by the (n-1)th rank branch and obtained, to separate The edge of node array, each node are associated with four sub-regions.

By the design of higher order branch appropriate, the area of X (Y) the electrode covering can be by carrying out with next Or the area that multiple steps are covered in the Y (X) electrode is changed with absolute value or relative value：Make the higher order branch in X There is different width with Y；Make the X and Y of the higher order branch that there is different length；Make the X of the higher order branch There is different quantity with Y；At least one of the higher order branch for making the X and Y is provided with internal microstructure, the inside Micro-structure includes lacking the film micro area of conductive material, and the film micro area is surrounded by conductive material；And make the X and Y more High-order branch is provided with internal microstructure, and the internal microstructure includes lacking the film micro area of conductive material, the film micro area quilt Conductive material is surrounded, wherein different with the ratio of the film micro area in Y-branch in the higher order X.In every sub-regions, The higher order X and at least some of Y-branch abreast separate extension by gap each other, and gap is suitable for a percussion institute The touch object for stating touch-control surface carries out mutual capacitance measurement.Coextensive the higher order X and Y-branch can respectively include X and Y One of at least one of the first rank, second-order and third Jie Deng branches and one of Y and X the first rank, second-order and At least one of three Jie Deng branches.

In some embodiments, the entirety that zeroth order and higher order branching representation X and Y electrode are formed in conductive material The macrostructure of electrode pattern makes wherein the other region of the conductive material is set as filling out the gap of electrode pattern described in Full The other region for obtaining the conductive material keeps being electrically isolated with X and Y electrode.The other region of these so-called fillers can be filled up The gap between hole and/or electrode in electrode.

In some embodiments, the capacitance touching control sensor be configured to together with the capacitance touching control sensor Simultaneously touch screen is consequently formed in the display combinations of operation.

A kind of manufacturer for the device combining capacitance touching control sensor another aspect of the present disclosure provides Method, the method includes：

A kind of touch panel is provided, in upside with touch-control surface, in downside with inner surface, the touch panel is by dielectric Material is made；

One group of X electrode is manufactured below the touch panel, the X electrode has the zeroth order branch extended in the x-direction；And One group of Y electrode is manufactured below the touch panel, the Y electrode has the zeroth order extended along the directions y for being different from the directions x Branch so that the zeroth order branch of the X electrode and Y electrode is intersected with each other in crosspoint, to form two-dimentional node array, determines Touch sensitive regions on the justice touch panel, wherein the ratio of width to height of the touch sensitive regions is equal to or more than 4： 3、3：2、8：5、 16：9 and 8：At least one of 3,

The X and Y electrode can be fabricated on mutual substratej, and wherein X and Y electrode are disposed in the same of the mutual substratej On one side or opposite.Alternatively, the X and Y electrode can be fabricated on respective substrate, one of them can be touch panel.

It is a kind of based on design capacitance formula touch sensing electrode pattern another aspect of the present disclosure provides Calculation machine automated method, the method includes：

Selection and the relevant electrode pattern template of electrode pattern, the electrode pattern include：

(a) one group of X electrode has the zeroth order branch extended in the x-direction and multiple higher order branches；And

(b) one group of Y electrode has the zeroth order branch extended along the directions y for being different from the directions x so that the of X and Y electrode Zeroth order branch intersects at crosspoint, and to form two-dimentional node array, which define touch sensitive regions, this group of Y electrode further includes multiple Higher order branch,

Wherein, at least some of X and Y-branch of the higher order are abreast separated by gap extend each other；

Specification, regulation are generated for required electrode pattern：

(a) lateral dimension of the touch sensitive regions in the directions x and y；

(b) there are multiple nodes in the touch sensitive regions in the directions x and y, correspond to the quantity of Y and X electrode respectively；And

(c) at least one area parameters of X and Y electrode；And

Electrode pattern is generated by changing the dimensional parameters in electrode pattern template, the electrode pattern template influences X and Y electricity At least one of the zeroth order of at least one of pole and higher order branch, so that generated electrode pattern meets the rule Lattice.

The specification can define the area ratio of required X and Y electrode as an area parameters, and for example, one, and/or The range of the required absolute area value or area of at least one of X and Y electrode.

The ratio of width to height of the touch sensitive regions is equal to or more than, for example, 4：3、3：2、8：5、16：9 and 8：At least one in 3 It is a.

It is combined with generated electricity with can then be manufactured after computer automation method design electrode pattern The device of the capacitance touching control sensor of pole figure case.

A kind of combine can be provided to be passed according to the capacitance touching control of the electrode pattern production using design method design The device of sensor.

It is a kind of another aspect of the present disclosure provides to combine the capacitive touch for being connected to touch-control sensing controler The device of sensor is controlled,

The wherein described capacitance touching control sensor includes：

One group of Y electrode is arranged in below the touch panel, has the zeroth order point extended along the directions y for being different from the directions x Branch so that the zeroth order branch of the X electrode and Y electrode is intersected with each other in crosspoint, to form two-dimentional node array, definition Touch sensitive regions on the touch panel, wherein the ratio of width to height of the touch sensitive regions is equal to or more than 4：3、3： 2、8：5、 16：9 and 8：At least one of 3,

The wherein described touch-control sensing controler includes：

It is connected to multiple X sensors input of X electrode and is connected to multiple Y sensors input of Y electrode, the X sensors are defeated Enter to be operable to maximum X self-capacitances, the Y sensors input is operable to maximum Y self-capacitances, wherein each X electrode covers The area of lid and the area that each Y electrode covers are associated with respective X and Y self-capacitances, X the and Y self-capacitances are equal to or small In the maximum X and Y self-capacitances of X and Y sensors input.

By coextensive, intersection or multiple higher order branches of intertexture X and Y electrode can be associated with each node Subregion on generate more uniform field distributions (be not such as argyle design design in the dead point that occurs).Touch-control Become the monotonic function of the surface area of the touch-control, the i.e. function of monodrome to the size of electric field perturbations, is touched to simplify to determine The post-processing controlled positions and dimensions and executed.

By coextensive, intersection or multiple higher order branches of intertexture X and Y electrode can also be significant for marginal belt Benefit because sensitivity and the linearity can with maintained until the edge of touch sensitive regions (i.e. in the section positioned at the edge of node array In point) to allow Rimless touchpad device to realize with the touch-control sensitivity until edge substantial linear.

By coextensive, intersect or multiple higher order branches of intertexture X and Y electrode can produce so that X and Y nodes that This electrode pattern (such as being deviated unlike in argyle design) overlapped.Especially X and Y nodes can be arranged to be formed Square nodes area array.This allows to each independently to consider in X and Y-axis touch-control to the disturbances of X and Y electric fields (i.e. The coupling for avoiding the X for example occurred in argyle design and Y-axis from disturbing).Which further simplifies held by location lookup algorithm Capable post-processing, so as to improve the linearity that touch-control determines, accuracy and speed.In addition, being measured for self-capacitance, when touch-control ruler It is very little when being less than node region, location information is always had on X-axis and Y-axis the two (unlike the argyle design with blind spot, on axis The touch-control of small area can be led to the position of touch loss of learning on one of axis).In addition, X and Y nodes is made to coincide with one another Mean that signal associated with mutual capacitance and self-capacitance measurement is centered in identical position (unlike the self-capacitance in argyle design Signal is positioned at the centre of diamond shape and mutual capacitance signal concentrates on the gap between X and Y diamond shapes).

Height it is coextensive, intersect or interweave and also imply that in each node region, electrode pattern have it is many between Gap, i.e. coextensive, the gap between the higher order electrode branches intersected or interweaved.This is so as to cause needed for floating touch-control Good ground connection coupling.For floating touch-control, touch screen will be conduction associated with display driving electrodes mainly Material.There are many gaps to mean if there is floating touch-control in touch sensing electrode pattern (such as from non-hand-held The user for equipment, because without being grounded to equipment chassis or shell), which still can be grounded to show electrode.(diamond shape In contrast, the touch-control close to the imperfect earth of the small area among one of diamond shape pad can be by the diamond shape pad screen for pattern It covers, therefore can not find a good ground connection route.)

The quantity and size of coextensive higher order X and Y-branch, it is coextensive between especially X and Y, intersect or interweaves The quantity of electrode branches, in response to specific stack arrangement can unrestricted choice optimize as design parameter it is uniform in transverse electric field Property, the specification in terms of sensitivity and capacitive load.When designing best intersection, the parameter to be considered includes：Touch surface plate thickness It spends, the distance between electrode pattern layer and related display layer needed for touch screen.The degree and type of intersection sense as touch-control The field uniformity of device, touch-control sensitivity, tradeoff of the active electrode impedance (charging time) between capacitive load.As for electrode Charging time, will be effectively proportional to electrode area.Such as, it means that if when X and Y electrode charging having the same Between (this is required), then X and Y electrode region should be identical.In addition, being surveyed to assign the faster self-capacitance of sensor Circulation time (this is needed sometimes) is measured, electrode area should smaller.

X and Y higher orders branch it is coextensive, intersect or interweave also allow electrode pattern, by X electrode (such as mutually electricity The driving electrodes of appearance) provide Y electrode (such as sensing electrode of mutual capacitance) shielding, so as to improve noiseproof feature.

Hereinafter, what capacitance touching control sensor device will be described in greater detail in we includes X and Y electrode combined crosswise Various designs, crosspoint formed define touch sensitive regions two-dimentional node array.In the designs, by changing electrode point The gross area of the size of such as width and length of branch and the gap between them, X and Y electrode can change relatively independently. Therefore, the self-capacitance of wherein X and Y electrode can be manufactured with the electrode pattern of certain proportion (being, for example, one), and to mend Repay the ratio of width to height of touch sensitive regions and/or with certain absolute value (such as in order to avoid touch-control sensing control for making sensor be connected Device overloads).

Description of the drawings

Hereinafter, the present invention will be further described solely by reference to exemplary embodiment shown in the accompanying drawings.

Fig. 1 shows the exemplary touch sensing with example controller.

Fig. 2A shows the block diagram of on-stack touch screens, wherein layer associated with sensor function physically with it is aobvious Show that the associated layer of function is separately and functionally independent.

Fig. 2 B show the block diagram of in-cell touch screens, wherein layer quilt associated with sensor function and display function Interweave and/or shared.

Fig. 3 is the floor map of exemplary touch sensing according to an embodiment of the present disclosure.

Fig. 4 is shown in height according to the schematic cross section by touch panel of several embodiments of the disclosure Field distribution during the mutual capacitance measurement of the electrode pattern of degree staggeredly.

Fig. 5 is the floor map for the embodiment electrode pattern that many subsequent embodiments are based on.

Fig. 6 A illustrate in greater detail one of Fig. 5 node regions.

Fig. 6 B show node region identical with Fig. 6 A, wherein the geometric parameters as the variable in design are marked Number.

Fig. 7 is that displaying meets the above-mentioned pattern with reference to Fig. 6 B descriptions for 5.6 inches of (14.2 centimetres) sensor regions The table of ten different example patterns.

Fig. 8 shows 10 example pattern #1 to #10 of Fig. 7.

Fig. 9 is that displaying meets the above-mentioned pattern with reference to Fig. 6 B descriptions for 7.3 inches of (18.5 centimetres) sensor regions The table of ten different example patterns.

Figure 10 shows 10 example pattern #1 to #10 of Fig. 9.

Figure 11 A and Figure 11 B are the floor map of different embodiments.

Figure 11 C are the modification of the embodiment of Figure 11 A and Figure 11 B, the filling of the gap conductive material wherein between electrode Wu Tian Full.

Figure 12 A and Figure 12 B are the floor map of different embodiments.

Figure 12 C are the modifications of the embodiment of Figure 12 A and Figure 12 B.

Figure 13 A and Figure 13 B are the floor map of another embodiment.

Figure 14 A, Figure 14 B and Figure 14 C are the floor map for having another embodiment of electrode for possessing fine-structure mesh cable architecture.

Figure 15 A and Figure 15 B show the part of the exemplary electrode branch with fine-structure mesh cable architecture.

Figure 16 is the plan view of the node region of embodiment electrode pattern, and wherein electrode is made of conductive material cable, It is identical shown in the global pattern and Fig. 5 of macroscopic aspect, 6A and 6B.

Figure 17 shows two coextensive higher order X and Y electrode branch to pass through the separated part of filler and example Structure, electrode branches and filler all have fine-structure mesh cable architecture.

Figure 18 shows the modification of the electrode pattern of Fig. 6 A.

Figure 19 is the flow chart for indicating to combine the manufacturing method of the device of capacitance touching control sensor.

Figure 20 is the flow chart for the computer automation method of the electrode pattern of design capacitance formula touch sensing.

Figure 21 shows that the sensor of the on-stackLCD embodiments of the disclosure and display stack.

Figure 22 shows that the sensor of the on-cellLCD embodiments of the disclosure and display stack.

Figure 23 shows that the sensor of the embodiment of the hybrid in-cellLCD of the disclosure and display stack.

Figure 24 shows that the sensor of the embodiment of another hybrid in-cellLCD of the disclosure and display stack.

Figure 25 shows that the sensor of the embodiment of the on-stackOLED of the disclosure and display stack.

Figure 26 shows that the sensor of the embodiment of the hybrid in-cellOLED of the disclosure and display stack.

Figure 27 shows the sensor and display heap of the embodiment of another hybrid in-cellOLED of the disclosure It is folded.

Figure 28 A are the schematic diagrames of the front of hand-held touch screen computing device according to an embodiment of the present disclosure.

Figure 28 B are the schematic diagrames at the rear portion of the hand-held touch screen computing device of Figure 28 A.

Figure 29 is the block diagram of the functional unit of the computing device of Figure 28 A and Figure 28 B.

Figure 30 schematically shows a part for the diamond shape electrode pattern designed according to the prior art, example in the plan view Such as, disclosed in US2010/156810A1.

Figure 31 A are shown in the schematic cross section of the touch panel of the field distribution during mutual capacitance measures.

Figure 31 B are shown in the schematic cross section of the touch panel of the field distribution during self-capacitance measures.

Specific implementation mode

In the following detailed description, in order to illustrate and it is unrestricted, elaborate detail to more fully understand this public affairs It opens.It will be apparent to one skilled in the art that the disclosure can be in the other embodiments for being detached from these details Practice.

Fig. 1 shows the exemplary touch sensing 10 with exemplary touch-control sensing controler 12, in the art Commonly known as touch-control integrated circuit (touch-control IC) or touch sensing/screen controller/chip (TSC).Touch sensing 10 Presence and position or the object of the touch-control in the touch sensitive regions of touch sensing 10 can be detected with touch-control sensing controler 12 The degree of approach.Touch sensing 10 may include one or more touch sensitive regions.Touch sensing 10 may include can be with single layer Or the electrod-array of multi-tier arrangement.The electrod-array is typically conductive material, and each layer is all deposited on the dielectric to form substrate On material, the substrate is for for example supporting and/or providing suitable deposition surface.

Each electrode can be the regions of conductive material of required cloth diagram form.As an example, not a limit, electrode can be by The tin indium oxide (ITO) that display application is selected for due to being transparent in visible light region is made.It is covered by conductive material The ratio of the electrode area of lid can change according to design, this percentage sometimes referred to as fills percentage in the art Than.As an example, not a limit, electrode can be made of metal or metal material or other conductive materials, such as copper, silver or copper Base or silver-based material or silicide.The necessary fine structure of Butut needed for generating in a metal is sometimes referred to as microline metallic (FLM). Other than layout shapes, conductive material can also be by fine-structure mesh line, and the wherein hole in cable is dimensioned in vertical In the direction of the plane of touch sensing, overlapped with the illuminator of the display (such as OLED display) of lower layer.Although this public affairs It opens content description or shows made of particular conductivity material, specific shape is formed by the specific filler with specific pattern Special electrodes, the disclosure covers made of any suitable conductive material, by the filling percentage shape of any appropriate pattern At any suitable shape any suitable electrode up to specification.

In embodiment of the disclosure, touch sensing is manufactured to include depositing with particular order or otherwise making Multiple layers of the layered structure made.The layered structure is referred to as stacking in the art.In touch screen embodiment, the stacking is also May include display layer to provide integrated display and touch sensing, i.e. integrated form touch screen.Alternatively, touch screen can be by Sensor stack and display stacking are made, and two of which stacking is unified in such a way that some are suitable is independent sub-component, example Such as, by suitably bonding.The stacking may include substrate (or multiple substrates) and form leading for the electrode of touch sensing 10 Electric material.

The layer that display stacks enables display screen to generate polychrome or monochrome image.The quantity of layer, type and takes side by side Certainly in the type of display screen.For example, LCD will be with the layer and sequence of layer different from OLED display.In order to form touch screen, lead to Touch sensing can be often placed on display stacking, be disposed in after their own be made and be integrated into one together A stacking or two sseparated stackings.

As an example, not a limit, which may include the first layer optics below the touch panel that display stacks Clear binder (OCA).The touch panel can be made of transparent and by the elastic material suitable for repeating touching, such as glass Glass material or plastic material.Suitable glass comes from alkali aluminosilicate race.Suitable plastic material include makrolon (PC) and Polymethyl methacrylate (PMMA).The disclosure contemplates any suitable touch panel being made of any suitable material. First layer OCA can be disposed between the layer or substrate and the substrate with conductive material of formation electrode of display stacking. It is (non-contact for example, it can be typical that substrate with conductive material can provide benefit or feature in manufacturing image Display stack in the layer or substrate that find), or can be the layer that specially adds to provide the substrate for being formed with electrode. In some embodiments, which can also include second layer OCA.In some embodiments, which can also include dielectric layer (it can be made of polyethylene terephthalate (PET) or other suitable materials, similar to the conduction for forming electrode The substrate of material).Alternatively, in appropriate circumstances, the shallow layer of dielectric material can be applied to replace second layer OCA And/or dielectric layer.Second layer OCA can be arranged between the substrate and dielectric layer with conductive material for constituting electrode, and And the dielectric layer can be arranged between second layer OCA and another layer of display stacking.As an example, not a limit, the touch-control Panel can be with about 0.15 to 1 millimeter of thickness；First layer OCA can be with about 0.05 millimeter of thickness；Formation electricity The substrate with conductive material of pole can be with about 0.05 millimeter of thickness；Second layer OCA can have about 0.05 millimeter Thickness；And the dielectric layer can be with about 0.05 millimeter of thickness.Although the present disclosure describes being made of certain material and The particular exemplary of the order of certain layer and layer with specific thicknesses stacks, but the disclosure covers with any suitable number Amount is made of any suitable material and has any suitable layer of any suitable stacking of any suitable thickness.

In a particular embodiment, the electrode of touch sensing 10 can completely or partially be made of ITO.In specific embodiment In, the electrode of touch sensing 10 can be made of the filament of metal or other conductive materials.As an example, not a limit, conductive One or more parts of material can be copper or copper-based, and with about 5 microns or smaller thickness and about 10 microns Or smaller width.As another example, one or more parts of conductive material can be silver or silver-based, and similarly have There are about 5 microns or smaller thickness and about 10 microns or smaller width.The disclosure covers by any suitable material system At any suitable electrode.

In implementing or using self-capacitance pattern, touch sensing 10 has the single type electrode for independently forming capacitive node Array.When object is in contact with or close to capacitive node, which may occur the variation of self-capacitance, and touch-control senses Controller 12 can measure the variation of capacitance, for example, being improved needed for a predetermined amount in response to by the voltage at the capacitive node The variation of the quantity of electric charge.As implementation mutual capacitance, pass through the variation for measuring the capacitance in entire array, touch-control sensing controler 12 It can determine the touch-control or close proximity in the touch sensitive regions of touch sensing 10.

In implementing or using mutual capacitance mode, touch sensing 10 has at least two differences for driving and sensing The electrod-array of type, (in the plan view) intersected with each other form capacitive node array.The a pair for forming capacitive node is specific Driving electrodes and sensing electrode are intersected with each other without being in electrical contact, but with across positioned at the solid dielectric between them Capacitive coupling.The pulse or alternating voltage for being applied to driving electrodes (by touch-control sensing controler 12) can incude in sensing electrode Charge, and the quantity of electric charge incuded may be by external action (such as touch-control or object be approached).When object in contact with or close to When capacitive node, capacitance variations can occur in the capacitive node, and touch-control sensing controler 12 can measure the capacitance variations. By measuring the capacitance variations in entire array, touch-control sensing controler 12 can determine in the touch sensitive regions of touch sensing 10 Touch-control or close proximity.In a particular embodiment, one or more driving electrodes can together horizontally or vertically or appoint What suitable direction runs to form driving line.Similarly, one or more sensing electrodes can together horizontally or vertically or appoint What suitable direction operation is to form sense wire.In a particular embodiment, driving line may be substantially perpendicular to sense wire operation, Although other intersecting angles are also possible.Here, the driving line being previously mentioned may include the one or more for constituting driving line Driving electrodes.Similarly, the sense wire being previously mentioned may include the one or more sensing electrodes for constituting sense wire.

It will be further understood that specific touch sensing 10 can use identical electrode in self-capacitance and mutually electric It is operated in molar formula, wherein touch-control sensing controler 12 is configured as between these modes switching as needed.

In order to realize that mutual capacitance measures, touch sensing 10 has on the both sides of dielectric material or the side of dielectric material Be formed as the two kinds of electrode (such as X and Y) of lattice.It is a pair of respectively to come from each type, across them between Space carries out capacity coupled electrode, can form a capacitive node.As for the realization of self-capacitance, it will usually use two types The electrode (although single type can be used only in principle carries out self-capacitance measurement) of type.For example, in order to carry out self-capacitance measurement, It then can be discharged by analogue integrator by all X electrodes and Y electrode driving to certain current potential.Each pin has three State exports framework and analogue integrator (or connection is to allow each pin multiplexing to analogue integrator), is with state：Driving is floated It is dynamic, it is switched to integrator, measures and discharges.Then, identical touch sensing can be worked with mutual capacitance and self-capacitance pattern.

In the case that two distinct types of electrode intersect (as illustrated as a plan view) and thus can be formed closest to mutual Capacitive node.In the place that they intersect, electrode will not be electrical contact with each other, and be across the dielectric capacitance coupling each other in intersection It closes.Although this disclosure has described the specific configuration for the special electrodes for forming specific node, the present invention, which covers to be formed, to be appointed Any suitable configurations of any suitable electrodes of what appropriate node.It is arranged in any suitable pattern in addition, the disclosure covers Any suitable electrode on any appropriate number of any suitable substrate.

As described above, the capacitance variations at the capacitive node of touch sensing 10 can be shown with Standard in the position of capacitive node Touch-control or close input.Touch-control sensing controler 12 can detect and handle the capacitance variations to determine touch-control or approach input In the presence of and position.Then, touch-control sensing controler 12 can be transmitted to by touch-control or close to the information of input including touch-control sensing One or more other assemblies (such as one or more central processing unit of the equipment of device 10 and touch-control sensing controler 12 (CPU)), can by start the function of equipment (or the application run in equipment) associated there respond touch-control or Close to input.Although this disclosure has described with the specific of the specific function about particular device and specific touch sensing Touch-control sensing controler, but the present invention covers and any has about any suitable equipment and any suitable touch sensing Any suitable touch-control sensing controler of any suitable function.

In a particular embodiment, touch-control sensing controler 12 includes analog circuit, Digital Logic and digital volatibility or non- Volatile memory.Touch-control sensing controler 12 may include one or more integrated circuits (IC), such as general purpose microprocessor, Microcontroller, programmable logic device or programmable logic array (PLA) or application-specific integrated circuit (ASIC).Touch-control sensing control The memory of device 12 can be random access memory (RAM), read-only memory (ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), static RAM (SRAM) and above-mentioned any suitable combination.Touch-control passes Sense controller 12 can be programmed with computer-readable program instructions, which can be via network (for example, internet, local Net, Wide Area Network and/or wireless network) it is downloaded from computer-readable storage medium or outer computer or External memory equipment. The network may include copper transmission cable, optical delivery fiber, wireless transmission, router, fire wall, interchanger, gateway meter Calculation machine and/or Edge Server.The computer-readable program instructions of operation for executing the disclosure can be assembler instruction jump, Instruction set architecture (ISA) instructs, machine instruction, machine-dependent instructions, microcode, firmware instructions, condition setup data or source Code or the object code write with any combinations of one or more programming languages, wherein programming language include such as The goal orientation programming language of Smalltalk, C++ etc., and such as " C " programming language or similar programming language etc it is normal Advise procedural.Touch-control sensing controler 12 includes electronic circuit, and can use such as programmable logic circuit, existing Field programmable gate array (FPGA) or programmable logic array (PLA) are programmed, can be by using computer-readable journey The status information of sequence instruction executes the computer-readable program instructions and carrys out the personalized electronic circuit, to execute each of the disclosure A aspect.

In a particular embodiment, touch-control sensing controler 12 is arranged on the flexibility for the substrate for being adhered to touch sensing 10 On printed circuit (FPC).In appropriate circumstances, which can be active or passive.In a particular embodiment, multiple Touch-control sensing controler 12 is arranged on the FPC.Touch-control sensing controler 12 may include processor 13, driving unit 15, sense Survey unit 17 and memory 19.Driving unit 15 can provide drive signal to the driving electrodes of touch sensing 10, mutual to carry out Capacitance measurement.Sensing unit 17 can detect the electricity at the capacitive node of touch sensing 10 in mutual capacitance and self-capacitance measure Lotus, and the measuring signal for indicating the capacitance at capacitive node is provided to processor 13.Processor 13 can pass through driving unit 15 The supply to the drive signal of driving electrodes is controlled, and handles the measuring signal from sensing unit 17, to detect and handle Touch-control in the touch sensitive regions of touch sensing 10 or the presence close to input and position.Processor 13 can also follow up touch-control biography Touch-control in the touch sensitive regions of sensor 10 or the variation close to the position of input.Memory 19 can be stored to be executed by processor 13 Program, include for control driving unit 15 to driving electrodes provide drive signal programming, carry out self-inductance measurement list for handling The programming and other suitable programmings of the measuring signal of member 17.Although this disclosure has described with the specific of particular elements The specific touch-control sensing controler of embodiment, but the present invention covers any any suitable implementation with any suitable components Any suitable touch-control sensing controler of scheme.

On the substrate of touch sensing 10, multiple conductive material tracks 14 are set, by the X and Y of touch sensing 10 Each in electrode is connected to the connection pad 16 being arranged on the substrate of touch sensing 10.Connection pad 16 contribute to by Track 14 (and so X and Y electrode line) is coupled to touch-control sensing controler 12.Track 14 extends to touch sensing 10 Among touch sensitive regions or around (for example, in edge).The specific subset of track 14 can be provided for by touch-control sensing control Device 12 is coupled to the drive connection of the driving electrodes of touch sensing 10, and the driving unit 15 of touch-control sensing controler 12 can pass through The drive connection provides drive signal to driving electrodes.Other tracks 14 can be provided to be arrived for coupling touch-control sensing controler 12 The sensing of the sensing electrode of touch sensing 10 connects, and the sensing unit 17 of touch-control sensing controler 12 can pass through the sensing Charge at the capacitive node of connection sensing touch sensing 10.It track 14 can be by the filament system of metal or other conductive materials At.As an example, not a limit, the conductive material of track 14 can be copper or copper-based, and have about 100 microns or smaller Width.As another example, the conductive material of track 14 can be silver or silver-based, and have about 100 microns or smaller Width.In a particular embodiment, track 14 can entirely or partly be made of ITO, as additionally or alternatively metal or Other conductive material filaments.Although this disclosure has described the certain tracks made of the certain material with specific width, But the present invention covers any suitable track made of any suitable material with any suitable width.In addition to track 14 it Outside, touch sensing 10 may include that (it can be for the grounding connector of the edge for the substrate for terminating at touch sensing 10 Connect pad 16) one or more ground wires (being similar to track 14).

Pad 16 is connected along one or more edges of touch sensing 10 to be located at except touch sensitive regions.As above Described, touch-control sensing controler 12 can be on FPC.Connection pad 16 can be made of material identical with track 14, and FPC can be adhered to using anisotropic conductive film (ACF).Connection 18 may include the conducting wire on FPC, by touch-control sensing control Device 12 is coupled to connection pad 16, to which touch-control sensing controler 12 to be coupled to the electrode of track 14 and touch sensing 10. The disclosure covers any appropriate form or type of the connection 18 between touch-control sensing controler 12 and touch sensing 10.

Fig. 2A is shown according to the particular implementation for including the touch sensing stacking 20 being disposed in display stacking 21 The block diagram of the on-stack touch screens of example.In on-stack designs, layer associated with sensor function physically with it is aobvious Show the associated layer of device function separate and it is largely independent on Electricity Functional (although touch sensing will inevitably with The current-carrying part that display stacks, mainly TFT driving electrodes, there is some capacitive couplings).

Fig. 2 B show the in- according to the specific embodiment for including combination touch sensing and display stacking 20,21 The block diagram of cell touch screens.In-cell design in, layer associated with sensor function and display function be interleaved and/ Or it is shared.

It may include the multiple layers for being configured as generating coloured image that display, which stacks 21,.Display stacks the layer in 21 Type and quantity can stack according to display 21 type and/or the intended application of display stacking and be changed.For example, LCD is aobvious Show that device stacks 21 and usually may require that at least two polarizers above and below liquid crystal layer, and OLED display stacks 21 and is then not required to It wants, but may include one or two polarizer.Each layer may include being used in display stacking 21 for generation figure The special characteristic or feature of picture.In some embodiments, these layers can be configured to supply coloured image.Specific embodiment is covered Display stacks 21 comprising the layer of any quantity and/or type for any kind of display.In some embodiments In, it can be that flexible display stacks that display, which stacks 21,.In some embodiments, display stacking 21 can be on its surface It is bent in one or more parts (for example, Samsung (trade mark) mobile phone) or its whole surface (for example, large screen television). In other embodiment, display stacks 21 and can be flexible so that it can be flat, or be used according to its environment The curve of various complexity.It should be noted that being stacked for non-flat forms, even if the plane is bending or non-flat in actual space Face, the reference of x and y or X and Y should be understood in the plane of stack layer.

Depending on operation needs or specific embodiment, the one or more components of touch sensing 10 can various not Tongfangs Any one of formula is integrated into display and stacks in 21.Touch sensing 10 can be located at display stack 21 in it is various not With any one of position.The position of touch sensing 10 can stack 21 type according to display and change (for example, LCD Display, OLED display, e-ink display etc.).For example, stacking 21 LCD for including at least two polarizers in its display In display, touch sensing 10 can be located at display and stack within 21, so as not to the polarization for changing light.For example, being shown in LCD During device stacks 21, if touch sensing 10 includes the substrate made of birefringent material, touch sensing 10 is not arranged Between two polarizers of LCD, but on them.If touch sensing 10 includes made of non-birefringent material Substrate, touch sensing 10 can be located between the polarizer that display stacks 21.On the other hand, 21 are stacked in OLED display In, it can be inessential that whether touch sensing 10, which includes birefringent material layer, therefore have bigger design freedom to remove cloth Required touch sensing layer is set, such as some touch sensing layers stack 21 layer intertexture (or combination) with display.For example, In some embodiments, touch sensing 10 can use the existing layer of display stacking 21 (for example, typical non-touch The layer, such as one of colour filter or polarization layer etc. that control display is found in stacking) it is used as substrate.

Touch sensing 10 can be similar to as above in relation to the touch sensing 10 described in Fig. 1, and including its class As components and functionality.According to embodiment and/or operation needs, touch sensing 10 can be one layer in display stacking 21 One or more components (for example, microline metallic electrode for sensing touch-control input) of interlayer or touch sensing 10 can be with It is deposited on the existing layer of display stacking 21.This can allow during the manufacture that display stacks 21 touch-control sensing function It is included.In embodiment on touch sensing 10 being deposited on the existing layer that display stacks 21, display stacks 21 Existing layer may be used as the substrate of touch sensing 10.In other embodiments, touch sensing 10 may include being placed on Display stacks the substrate of oneself in 21.According to the institute of the type of display and/or touch sensing 10 in display stacking Position is needed, the substrate for touch sensing 10 can be made of birefringent material or non-birefringent material.In some embodiments In, it stacks setting touch sensing 10 in 21 in display and allows that there is the display of touch-control sensing ability to be stacked on touch-control sensing Device 10 and display are substantially absent from air gap between stacking 21.Therefore, in certain embodiments, stacked in 21 in display Touch sensing 10 is set and allows that there is the display of touch-control sensing ability to stack than having addition at the top of display stacking The traditional monitor of touch sensing stacks thinner.

Fig. 3 is the schematic plan view of the exemplary touch sensing 10 of trellis-type according to an embodiment of the present disclosure.It deposits There are two groups of parallel poles, X electrode 24 and Y electrode 26.The X and the orthogonal extension of Y electrode shown in scheming, as long as but X Intersect with Y electrode to form the quantity and total body density of node 25 appropriate, interior joint is limited by the crosspoint of X and Y electrode pair Fixed (as illustrated as a plan view), other angles can also be used.Example endpoint (X3, Y3) has been marked in figure.The quantity of node 25 is logical Be often the quantity of X electrode and Y electrode product-in the example shown, it is the number of X electrode line to have M × N number of node, wherein M Amount, N is the quantity of Y electrode wires.Each node 25, i.e. crosspoint 25 is associated with the subregion 27 of touch sensing, X and Y Electrode pattern extends in the subregion 27 so that touch-control will produce signal associated with the node and (not show in Fig. 3 Go out electrode pattern；The so-called ridge of only X and Y electrode).For example, node (X3, Y6) has with runic hatch mark in the figure The associated subregion of possibility 27.Assuming that not having other crosspoints other than main intersection point 25, between X and Y electrode, (this is logical Reason condition), then the expanded range of the subregion in any one crosspoint between electrode Xn and Yn is by electrode Xn-1 and Xn+1 And the region formed between Yn-1 and Yn+1 is limited, i.e. the square block of four in Fig. 3.In some electrode patterns, Touch-control in subregion Anywhere will generate signal associated with the node.However, for other electrode patterns, only one Part subregion will be associated with the node.X and Y electrode are disposed in the both sides (invisible in figure) of dielectric layer, therefore they The thickness of dielectric layer is offset by perpendicular to each other, and vertical meaning is to be orthogonal to the plane of stack layer, i.e., in the figure perpendicular to paper The plane opened.If it is desired, X and Y electrode can be deposited on the same side of dielectric substrate layer, in intersection part The dielectric material film of deposition is short-circuit between X and Y electrode to avoid.This single electricity is disclosed in US2010/156810A1 Pole layer design, entire contents are incorporated herein by reference.In the figure, the signal of the finger of the hand H of a user is shown Touch-control T.From diagram as can be seen that single touch-control can often cover on multiple nodes-in this illustration, which is covered in On four nodes extended on two adjacent x-rays and two adjacent Y lines.Possess from least two adjacent X electrodes and extremely The signal of few two adjacent Y electrodes can be to touching signals respectively in the x and y direction into row interpolation, to be inferred to x, y touch-controls Coordinate.It should be understood that crosspoint is actually not the point on geometric meaning, but a region, because in X and Y electrode The crosspoint of intersection will be the area of a restriction where X electrode and Y electrode overlapping, such as that thought in the plan view Sample.In the case of the orthogonal crossover of straight line X and Y electrode part that respective width is Wxc and Wyc, which will be Wxc With the product of Wyc.

Fig. 4 is shown and is used for according to the schematic cross section by touch panel of several embodiments of the disclosure Field distribution of the electrode pattern of high cross during mutual capacitance measures.The schematic cross-section is flat perpendicular to stacking at one In the face in face, the multiple staggered electrode branches for being related to X (driving) and Y (sensing) electrode are shown：The mutual capacitance of Xn, Yn measure. Electric field line is schematically shown with arrow line.From schematic diagram as can be seen that in the adjacent region in gap " G " between X and Y electrode Electric field strength highest, and towards the inside of each electrode reduce, gap " G " be dimensioned in touch object in touch-control Touching on surface carries out mutual capacitance measurement.Stretching transverse to related electrode branch on cross section in the plane of electrode pattern Direction is opened up, relatively narrow width " W is respectively provided with_x" and " W_y" X and Y electrode branch between height intersection or staggeredly result It is in the plane of the touch-control surface in each node region, also to cross over all nodes, i.e., entire sensor region provides height Uniform field distribution.

There is different cross-sectional width " W for X staggeredly and Y electrode_x" and " W_y" it is to be enabled in entire touch-control sensitizing range A kind of area matched method that the area of entire X electrode covering can be covered with Y electrode, to compensate for touch sensitive regions right and wrong Square, i.e., rectangle or substantially rectangle the fact, such as in the case that one typically have fillet.Further below Other modes, such as X with different length and Y electrode branch are discussed.

Hereinafter, the cross of an electrode branches of the direction of extension transverse to electrode branches in electrode pattern plane Sectional dimension is commonly known as width, is just wherein it should be understood that this size is in the x/y plane of electrode branches It meets in the plane in the directions z in the direction stacked as structure layer.

Touch-control becomes the size of electric field perturbations the monotonic function of the surface area of the touch-control, the i.e. function of monodrome, to letter Change to determine post-processing that position of touch and size execute.The field uniformity of each node region and good sensitive Degree also implies that the sensitivity of node at the edge (or angle) of node array or the performance of its transverse electric field uniformity do not have Significant deterioration.Since electric field strength reduces with the vertical range of electrode plane, so generally corresponding to interwoven electrodes point The quantity of branch, the width of the planar cross section of crossed electrode can select in any particular design to ensure in touch-control surface Required transverse electric field uniformity.This means that by by electrode pattern design at greater number of and/or narrower friendship Branch is pitched, thinner touch panel is adapted to while still maintaining transverse electric field uniformity.

Fig. 5 is the schematic diagram for the special electrodes pattern that many of which subsequent embodiment is based on.Fig. 5 is shown including having The electrode pattern of 3 × 3 nominal node arrays of associated track and connection pad.

Fig. 6 A and 6B show the adjacent amplifier section of one of Fig. 5 nodes.Fig. 6 A are labelled with reference numeral Feature.Fig. 6 B are labelled with the certain geometric parameters for the variable that may be used as in design.It should be recognized that a commercial apparatus Would generally be with the node array of bigger, but 3 × 3 arrays are enough all aspects of display pattern, especially at the edges x and y With corner and the inside at separate edge.

Mutual capacitance is measured, we will be connected to operable X electrode as driving electrodes, and will be connected to Operable Y electrode is as sensing electrode.(it however, it can be that opposite setting, i.e. X are sensing, Y is driving.) X electricity It can extremely be disposed in below the Y electrode so that Y electrode is than X electrode closer to touch panel.(still, opposite sequence It is possible).

Such as described elsewhere herein, which forms one or more capacitance touching control sensor layers.The electricity Pole figure case is located at below a touch panel, and there is touch-control surface, downside to have inner surface for the upside of the touch panel.This is touched Control panel is made of dielectric material.The electrode pattern can be embedded into dielectric material (such as suitable adhesive) and/or set It sets on the side of nonconductive substrate.

The element of basic structure is as described in above in relation to Fig. 1 and Fig. 3.With reference to figure 5, three row X electrodes 24 are connected to respectively From X electrode track 14X, wherein X electrode track 14X leads to connection pad 16X Will, and often row X electrode ohm is coupled to touch-control sensing Controller.Similarly, three row Y electrodes 26 are connected to respective Y electrode track 14Y, and wherein Y electrode track 14Y leads to connection Each column Y electrode ohm is coupled to touch-control sensing controler by pad 16Y.X electrode is shown as shallower in figure, and Y electrode is shown It is shown as deeper gray shade.

There are one branched structures for each electrode, have the center ridge or trunk of a part for the electrode for forming node, and The branch being branched off by the ridge can have from the branch of themselves again.Therefore, ridge is known as zeroth order point by us Branch, branches into the first rank branch from ridge, second-order branch etc. is branched into from the first rank branch.In contrast to zeroth order Branch this second, three, the branches such as quadravalence are collectively referred to as higher order branch.

Therefore, which includes one group of X electrode 24, and each X electrode 24 has the zeroth order point extended in the x direction Branch (i.e. X- ridges) and one group of Y electrode 26, each Y electrode 26 have zeroth order branch (i.e. Y- ridges) in the side y transverse to the directions x It upwardly extends.In general, the directions x and y can be at right angles to each other, although this is technically unnecessary.The zeroth order of X and Y electrode Branch is intersected with each other to form two-dimentional node array at crosspoint 25.In the case where x is orthogonal with y, the adjacent X of any two The zeroth order branch of electrode and the adjacent Y electrode of any two defines the subregion of a square or rectangle.It should realize It arrives, in commercial apparatus, the subregion is generally square to provide identical touch-control resolution ratio in the x and y direction.

The X and Y electrode 24 and 26 further include respectively n ranks higher order branch, each branch is limited to its development or branch In subregion.Exponent number n is positive integer (i.e. 1,2,3...).N-th order branch is developed by the (n-1)th rank branch and is obtained.Far from node The place of array edges, each node is to associated with four sub-regions.

Each X electrode 24 has from the first rank branch 241 of its 240 branch of zeroth order branch and from its first rank branch The second-order branch 242 of 241 branches.The zeroth order branch 240 extends in the x-direction.The first rank branch 241 extends in the y-direction. The second-order branch 242 extends in the x-direction.Each Y electrode 26 has the first rank branch from its 260 branch of zeroth order branch 261.The zeroth order branch 260 extends in the y-direction.The first rank branch 261 extends in the x-direction.

The zeroth order X and Y-branch 240,260 width kept constant are not repaiied narrow at crosspoint 25.Such as in plan view Shown in, the Y-branch 260 is respectively across X branches 240 in a manner of bridge and river.(alternatively, the zeroth order X branches can be with Across the zeroth order Y-branch).

The width of the zeroth order branch 240 of the X electrode 24 is more than the width of at least coextensive higher order X electrode branch Degree.In certain embodiments, in the zeroth order X branches 240 wide 1.5,2,2.5,3,4,5,6,7,8,9 and 10 at least One factor.In certain embodiments, the factor of the X branches is no more than 20,18,16,14,12,10,9,8,7,6 With at least one of 5.

The width of the zeroth order branch 260 of the Y electrode 26 is more than the width of at least coextensive higher order Y electrode branch Degree.In certain embodiments, in the zeroth order Y-branch 260 wide 1.5,2,2.5,3,4,5,6,7,8,9 and 10 at least One factor.In certain embodiments, the factor of the Y-branch is no more than 20,18,16,14,12,10,9,8,7,6 With at least one of 5.

The X and Y electrode can be made into wider and can have width substantially identical to each other or different width Degree.The x of the touch-control sensitizing range：Y the ratio of width to height can be equal to or more than 4：3,3：2,16：9 and 8：At least one of 3.This Zeroth order X electrode width can be selected in response to the ratio of width to height so that the zeroth order X electrode width is about wider than the zeroth order Y electrode The big at least x of degree：Y the ratio of width to height.

In every sub-regions, certain branches of higher order X and Y-branch are abreast separated by gap " G " each other to be extended, The gap " G " is suitable for carrying out mutual capacitance measurement to the touch object of touch-control surface described in a percussion.In shown pattern, altogether It is with the higher order X and Y-branch extended：First rank X and Y-branch 241,261；Second-order X branches 242 and the first rank Y-branch 261；And second-order X and Y-branch 242,262.The coextensive branch with the directions x and y bevel all to extend；Institute In diagram case, the angle about x and y is at 45 degree.The pattern can be modified to change the coextensive relatively higher order branch Angle of inclination.It is cross modal with finger that this is coextensive, and the finger refers to above-mentioned higher order branch.When sliding or its His gesture accurately or approximately along the directions x or y, coextensive higher order branch do not extend in the x and y direction but and its It is angled, can have the advantages that improve the susceptibility to these gestures.

The exact number of coextensive higher order branch per sub-regions can vary depending on.For example, can There is 4,5,6,7,8,9,10 or more the higher order X branches and 4 that abreast extend each other, 5,6,7,8,9,10 or more More higher order Y-branches.

The edge for the first rank branch that the edge and x- and y- of the zeroth order branch extend is illustrated as zigzag.Become at one In type, they can be smooth.

With reference to figure 6B, label is as follows：

As described below, by selecting required node width and height of node, then change other ginsengs listed in above table It counts to be designed, so that entire X electrode area and entire Y electrode area equation, or to meet necessary to specification close to phase Deng.It should be recognized that other parameters related with the geometry of electrode can also change to realize equal X and Y electrode face Product, although the target is realized in above-mentioned having sufficed to show that.For example, the width of the first rank branch on node periphery does not need to be fixed For the half of zeroth order branch width.In addition, the relative length of coextensive higher order X and Y-branch can also change.

Fig. 7 is to show to meet above-mentioned Fig. 5, and the pattern of 6A and 6B is for 5.6 inches of (14.2 centimetres) sensor regions The table of ten different example patterns, the side for the node width and height of node that 3.76 millimeters having the same of the sensor region Shape node, and in X and Y be 32x20, i.e., the ratio of width to height be 8：5 node array.Vertically and horizontally ridge width remains unchanged for this, and And also apply the limitation that above-mentioned ridge width halves.As can be seen that all patterns, which all realize, makes X and Y electrode entire area Substantially identical target.The percent difference between X electrode and Y electrode region in ten embodiments is percent Between 0.005 and 0.3.However, there are the electrode zone of wide scope, i.e., the fill factor of wide scope, wherein fill factor are The percentage of the entire node region occupied by electrode.(note that herein, fill factor is including being not X or Y electrode A part any electrode material, such as isolated island filler.) fill factor is between percent 42 and 87.According to Using, it may be necessary to higher or lower fill factor.High fill factor will promote self-capacitance measure, and lower filling because Son will lead to the faster charging time.

Fig. 8 shows ten example patterns of #1 to the #10 of Fig. 7.

Fig. 9 is to show to meet above-mentioned Fig. 5, and the pattern of 6A and 6B is for 7.3 inches of (18.5 centimetres) sensor regions The table of ten different example patterns, the side for the node width and height of node that 5.45 millimeters having the same of the sensor region Shape node, and in X and Y be 32x12, i.e., the ratio of width to height be 8：3 node array.Vertically and horizontally ridge width remains unchanged for this, and And also apply the limitation that above-mentioned ridge width halves.As can be seen that all patterns, which all realize, makes X and Y electrode entire area Substantially identical target.The percent difference between X electrode and Y electrode region in ten embodiments is 0.12 percent And between 0.86.However, there are the electrode zone of wide scope, i.e. the fill factor of wide scope, wherein fill factor is electric The percentage for the entire node region that pole occupies.(note that herein, fill factor do not include be not one of X or Y electrode Point any electrode material, such as isolated island filler.) fill factor is between percent 29 and 65.According to answering With, it may be necessary to higher or lower fill factor.High fill factor will promote self-capacitance to measure, and lower fill factor It will lead to the faster charging time.

Figure 10 shows ten example patterns of #1 to the #10 of Fig. 9.

The ratio for being adapted for carrying out and changing X electrode and Y electrode material in any specific node region will now be described in we The electrode pattern of several replacements of the idea of (or absolute magnitude of X electrode material or Y electrode material), to realize in X and Y electrodes Balance (or making the absolute area value of X electrode or Y electrode or both all in certain desired value) between entire area.

Figure 11 A and 11B are the schematic diagrames of one embodiment.Figure 11 A are shown including associated track and connection The electrode pattern for being nominally 3 × 3 node arrays of pad, and Figure 11 B show adjacent the putting of one of Figure 11 A nodes It is most of.It should be recognized that a commercial apparatus would generally be with the node array of bigger, but 3 × 3 arrays are enough to show figure All aspects of case, especially in the edges x and y and corner and far from the inside at edge.

The element of basic structure is as described in above in relation to Fig. 1 and Fig. 3.With reference to figure 11A, three row X electrodes 24 are connected to Respective X electrode track 14X, wherein X electrode track 14X lead to connection pad 16X Will, and often row X electrode ohm is coupled to touch-control biography Sense controller.Similarly, three row Y electrodes 26 are connected to respective Y electrode track 14Y, and wherein Y electrode track 14Y leads to company It meets pad 16Y and each column Y electrode ohm is coupled to touch-control sensing controler.X electrode is shown as shallower in figure, Y electrode quilt It is shown as deeper gray shade.

The zeroth order X and Y-branch 240,260 repaiied at crosspoint 25 it is narrow, to reduce the X and Y the 0th at crosspoint 25 The respective intersection area representated by the product of width of rank branch.As shown in the plan view, the Y-branch 260 respectively with bridge and The mode in river is across X branches 240.(alternatively, the zeroth order X branches can be across the zeroth order Y-branch).

Far from narrow region is repaiied near crosspoint 25, the width of the zeroth order branch 240 of the X electrode 24 is more than at least The width of coextensive higher order X electrode branch.In certain embodiments, the zeroth order X branches 240 are wide by 1.5,2, At least one of 2.5,3,4,5,6,7,8,9 and 10 factor.In certain embodiments, the factor of the X branches is not More than at least one of 20,18,16,14,12,10,9,8,7,6 and 5.

Far from narrow region is repaiied near crosspoint 25, the width of the zeroth order branch 260 of the Y electrode 26 is more than at least The width of coextensive higher order Y electrode branch.In certain embodiments, the zeroth order Y-branch 260 is wide by 1.5,2, At least one of 2.5,3,4,5,6,7,8,9 and 10 factor.In certain embodiments, the factor of the Y branches is not More than at least one of 20,18,16,14,12,10,9,8,7,6 and 5.

The X and Y electrode can be made into wider and can have width substantially identical to each other or different width Degree.The x of the touch-control sensitizing range：Y the ratio of width to height can be equal to or more than 4：3,3：2,16：9 and 8：At least one of 3.This Zeroth order X electrode width can because should the ratio of width to height select so that the zeroth order X electrode width is about than the zeroth order Y electrode Width greatly at least x：Y the ratio of width to height.

Thick zeroth order branch, i.e. electrode ridge are kept, has been maintained for high overall electrode electric conductivity so that can be allowed in Intersection with height in higher order branch, is narrow higher order branch.

In every sub-regions, certain branches of high-order X and Y-branch are abreast separated by gap " G " each other to be extended, should Gap " G " is suitable for carrying out mutual capacitance measurement to the touch object of touch-control surface described in a percussion.In shown pattern, jointly The higher order X and Y-branch of extension are the first rank Y-branch 261 extended in the directions x- and second-order X branches 242.This prolongs jointly It is cross modal with finger to stretch, and the finger refers to above-mentioned higher order branch.

As can be seen from Figure 11B, in every sub-regions, outmost second-order X branches 242 are (i.e. on the directions distance y- Zeroth order branch either side it is farthest) outermost (and in the directions y-) the first rank Y-branch 261 of encirclement.These are outermost The second-order X branches in face are given reference numeral 242E.Therefore, the mutual capacitance between second-order X branches and the first rank Y-branch It is substantially confined to, that is, is encapsulated in, in the part of subregion as shown in Figure 11 B.In the y-direction, electric field encapsulation is provided Outermost second-order X branch 242E and neighbouring X electrode direct neighbor are not have the Y electrode of part between them.These It is marked with the dotted line frame labeled as " E " in Figure 11 A one of in area of the pattern.

Particularly, it can be seen that the X branching ratios Y-branch of intersection is more one (being 5 pair 4 in figure) so that the Y of all intersections The X branches that branch is intersected surround.

Figure 11 C are the modifications of the embodiment of Figure 11 A and Figure 11 B, wherein the gap between X and Y electrode, including clearance G, It is filled with the filler 35 of conductive material.It is compared with Figure 11 C with Figure 11 B.The filler 35 includes the region of conductive material, It is preferably identical as the conductive material for manufacturing electrode, between being arranged in the electrode pattern between filling X and Y electrode Gap, but so that the filling region keeps being electrically isolated with X and Y electrode, i.e., by keeping adjacent with its periphery without conductive material Appropriate gap.

Figure 12 A and 12B are the schematic diagrames of one embodiment.Figure 12 A are shown including associated track and connection The electrode pattern for being nominally 3 × 3 node arrays of pad, and Figure 12 B show adjacent the putting of one of Figure 12 A nodes It is most of.It should be recognized that a commercial apparatus would generally be with the node array of bigger, but 3 × 3 arrays are enough to show figure All aspects of case, especially in the edges x and y and corner and far from the inside at edge.

The element of basic structure is as described in above in relation to Fig. 1 and Fig. 3.With reference to figure 12A, three row X electrodes 24 are connected to Respective X electrode track 14X, wherein X electrode track 14X lead to connection pad 16X Will, and often row X electrode ohm is coupled to touch-control biography Sense controller.Similarly, three row Y electrodes 26 are connected to respective Y electrode track 14Y, and wherein Y electrode track 14Y leads to company It meets pad 16Y and each column Y electrode ohm is coupled to touch-control sensing controler.X electrode is shown as shallower in figure, Y electrode quilt It is shown as deeper gray shade.

As can be seen from Figure 12B, in every sub-regions, outmost second-order X branches 242 are (i.e. on the directions distance y- Zeroth order branch either side it is farthest) outermost (and in the directions y-) the first rank Y-branch 261 of encirclement.These are outermost The second-order X branches in face are given reference numeral 242E.Therefore, the mutual capacitance between second-order X branches and the first rank Y-branch It is substantially confined to, that is, is encapsulated in, in the part of subregion as shown in Figure 12 B.In the y-direction, electric field encapsulation is provided Outermost second-order X branch 242E and neighbouring X electrode direct neighbor are not have the Y electrode of part between them.These It is marked in fig. 12 with the dotted line frame labeled as " E " one of in area of the pattern.

In this embodiment, at least some of the zeroth order of at least one of X and Y electrode and higher order branch quilt It hollows out to form the hollow region ' h ' for the conductive material for not having manufacture X and Y electrode.(hereinafter, we are sometimes by these Area of knockout is known as macro region, so as to by they and the cable electrode that is further described below generate we term it microcells The hole in domain separates.) compared with the solid electrode with same circumference, introducing hollow space, which has, reduces covering for impacted electrode The effect of capping product.Then it in every sub-regions, compared with the solid electrode with same circumference, is covered jointly by X and Y electrode The area of lid reduces.It, can be with for example, the area that X and Y electrode collectively cover, including their zeroth order and higher order branch It is made into one of 80%, 70%, 60%, 50%, 40%, 30%, 20% and 10% less than the subregion.By X and Y The area that electrode collectively covers can be more than 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15% He At least one of 20%.It should be noted that for any specific noise level, surveyed less than some fill factor self-capacitance Amount may become to be practically impossible, therefore in some embodiments, such electrode pattern is only applicable to carry out Mutual capacitance measures.In the example shown, X and Y zeroth orders electrode 240,260 all have hollow space.All first rank Y-branches 261 have There is hollow space.In addition, for second-order X electrode 242, other than the part of outermost encapsulation, all having is hollow Part.The second-order X electrode 242E of the encapsulation keeps solid.It should be recognized that the design can change as needed so that in Empty part exists in the X of any rank or Y electrode branch.

This design is advantageous in electrodes for display layer is stacked very close to the display of touch sensing electrode layer. In these cases, the self-capacitance between touch sensing electrode and electrodes for display can be large enough to so that it removes any passing Self-capacitance between sensor electrode and touch-control.In other words, the close of display means not enough sensitivity to allow Self-capacitance measurement is carried out to touch-control.If can receive to measure without self-capacitance touch-control, which can be according only to mutual Capacitance touching control measurement optimizes.Wherein, it means that there is the reasons why big conductive area no longer to exist in touch control electrode, to The electrode area can be reduced.It reduces electrode area and increases resistance, but the self-capacitance of electrode can also be reduced, to the charging time It can keep short enough so that it is acceptable.Overall electrode area is reduced to be also applied for realizing the higher order electricity of the intersection of high quantity Pole branch.

Figure 12 C are the modifications of the embodiment of Figure 12 A and Figure 12 B, and wherein the hollow region ' h ' is filled out with the island Like of conductive material Fill the filling of object 35.It is compared with Figure 12 C with Figure 12 B.Island Like fillers 35 be conductive material region, preferably with for Manufacture electrode conductive material it is identical, be arranged to filling electrode pattern in gap, but so that the island areas keep with X and Y electrode is electrically isolated, i.e. the appropriate gap by keeping the not conductive material adjacent with its periphery.

Figure 13 A and 13B are the schematic diagrames of one embodiment.Figure 13 A are shown including associated track and connection The electrode pattern for being nominally 3 × 3 node arrays of pad, and Figure 13 B show adjacent the putting of one of Figure 13 A nodes It is most of.It should be recognized that a commercial apparatus would generally be with the node array of bigger, but 3 × 3 arrays are enough to show figure All aspects of case, especially in the edges x and y and corner and far from the inside at edge.

The element of basic structure is as described in above in relation to Fig. 1 and Fig. 3.With reference to figure 13A, three row X electrodes 24 are connected to Respective X electrode track 14X, wherein X electrode track 14X lead to connection pad 16X Will, and often row X electrode ohm is coupled to touch-control biography Sense controller.Similarly, three row Y electrodes 26 are connected to respective Y electrode track 14Y, and wherein Y electrode track 14Y leads to company It meets pad 16Y and each column Y electrode ohm is coupled to touch-control sensing controler.X electrode is shown as shallower in figure, Y electrode quilt It is shown as deeper gray shade.

As can be seen from Figure 13B, in every sub-regions, outmost second-order X branches 242 are (i.e. on the directions distance y- Zeroth order branch either side it is farthest) outermost (and in the directions y-) the first rank Y-branch 261 of encirclement.These are outermost The second-order X branches in face are given reference numeral 242E.Therefore, the mutual capacitance between second-order X branches and the first rank Y-branch It is substantially confined to, that is, is encapsulated in, in the part of subregion as shown in Figure 13 B.In the y-direction, electric field encapsulation is provided Outermost second-order X branch 242E and neighbouring X electrode direct neighbor are not have the Y electrode of part between them.These It is marked in figure 13a with the dotted line frame labeled as " E " one of in area of the pattern.

The exact number of coextensive higher order branch per sub-regions can vary depending on.For example, can There is 4,5,6,7,8,9,10 or more the higher order X branches and 4 that abreast extend each other, 5,6,7,8,9,10 or more Higher order Y-branch.

In the present embodiment, at least some of higher order X and/or Y-branch are repaiied narrow, to reduce its covering surface.It should Zeroth order X and/or Y-branch can also be repaiied narrow.So that electrode is repaiied narrow has the effect of reducing the area coverage of impacted electrode.In It is in every sub-regions, compared with the conventional subregion design being intended to fill as much as possible with electrode pattern, by X electricity The area that pole and Y electrode collectively cover reduces.For example, the area that X and Y electrode collectively cover, including their zeroth order and Higher order branch can be made into 80%, 70%, 60%, 50%, 40%, 30%, 20% and 10% less than the subregion One of.The area collectively covered by X and Y electrode can be more than 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, At least one of 9%, 10%, 15% and 20%.It should be noted that for any specific noise level, it is less than some The measurement of fill factor self-capacitance may become to be practically impossible, therefore in some embodiments, such electrode Pattern is only applicable to carry out mutual capacitance measurement.In the example shown, narrow electrode is repaiied to carry out in X and Y electrode 24,26.Other embodiments One in narrow X and Y can only be repaiied.Furthermore, it is possible to according to it is required similarly or differently carry out repairing in X and Y it is narrow.

Figure 14 A and 14B are the schematic diagrames of embodiment.In the embodiment of macroscopic aspect totality pattern and Figure 11 A and Figure 11 B It is identical.However, the electrode is made of conductive material cable, instead of solid, i.e., the conductive material by continuous blanket shape is made At electrode.Will Figure 14 A are compared with Figure 11 B, possess identical macroscopic aspect pattern, but with cable rather than it is solid Electrode.It should be appreciated that the fairly large structure of the embodiment will look like Figure 11 A in macroscopic aspect.Figure 14 B are shown The details of the electrode cable of one of Figure 14 A, such as Y electrode, wherein it is evident that the cable includes having gap The crisscross conductive material continuous lines 37 of " g " (microgap), therebetween without conductive material.

Figure 14 C are the schematic diagrames of the modification of the embodiment of Figure 14 A and 14B, wherein and the not all friendship in length and breadth for constituting cable Wrong conduction material stockline is all continuous.The cable that this modification is demonstrated to illustrate any specific electrode or electrode branches needs Will be with continuous conduction path so as to the principle of the part as same electrode, however may include forming the net by removing The individual lengths part of the crisscross conductor wire of cable architecture and the fracture that is formed interrupt 39.

More briefly, it should be noted that any macroscopic aspect electrode pattern as described herein can have by such as scheming Some or all of cable substitution structure shown in 14B and Figure 14 C.In addition, if there are any isolation in specific structure Island conductive material, these can also the cable shown in such as Figure 14 B and Figure 14 C formed.

Figure 15 A and 15B show the part of the exemplary electrode branch with fine-structure mesh cable architecture.In Figure 15 A, in cable Fracture be applied to the transverse edge of electrode branches (or filler).In Figure 15 B, the fracture in cable is applied to electrode Inside two transverse edges of branch's (or filler), and the electrode branches far from the transverse edge.

Figure 16 is the plan view of the node region of an electrode pattern embodiment, and wherein the electrode is by conductive material cable system At, but it is identical shown in the macroscopic aspect global pattern and Fig. 5,6A and 6B.Reference numeral identical with Fig. 6 A is used to Mark corresponding feature.

Figure 17 shows the schematic plan views of the details of three coextensive cable parts.They are marked as X, fill out It fills and Y, because they can be the coextensive higher order X and Y-branch with coextensive filler between them. Therefore, it will be obvious to those skilled in the art that in some embodiments, in coextensive higher order X Gap (that is, measuring relevant parameter with mutual capacitance) between Y electrode pair can be partly by the filler of electrode material institute Filling but still retains and is electrically isolated with adjacent X and Y electrode branch.

In addition, identical net line structure as shown in figure 17 can be expressed as the crossed electrode that do not fill, i.e. X-Y-X or Y-X-Y.Similarly, for the encapsulation design of node of such as Figure 11 A and Figure 11 B, these three coextensive cable parts can be with Sequence X-the X-Y being expressed as at node boundary.

Figure 18 shows the modification of the electrode pattern of Fig. 6 A, has the section in the embodiment similar to Figure 11 A and Figure 11 B The Y electrode part 262E of point boundary encapsulation.Other reference numerals can refer to the embodiment of front to understand.

Figure 19 is the manufacturing method for showing the device according to an embodiment of the present disclosure for combining capacitance touching control sensor Flow chart.In step sl, a kind of touch panel is provided, in upside with touch-control surface, in downside with inner surface, The touch panel is made of dielectric material.In step s 2, one group of X electrode is manufactured, wherein X electrode is disposed in touch panel Lower section, and with the zeroth order branch extended in the x-direction.In step s3, one group of Y electrode is manufactured, wherein Y electrode is disposed in Below touch panel, and with the zeroth order branch extended along the directions y for being different from the directions x.Such manufacture is so that the X The zeroth order branch of electrode and Y electrode is intersected with each other in crosspoint, and to form two-dimentional node array, which define the touch surfaces Touch sensitive regions on plate, wherein the ratio of width to height of the touch sensitive regions is equal to or more than 4：3、3：2、 8：5、16：9 and 8：In 3 It is at least one.The X and Y electrode can manufacture in identical layer or the different layers that are separated by dielectric materials layer in.The X electricity The area of pole covering is at least roughly the same with the area of Y electrode covering so that the self-capacitance of the X electrode and Y electricity The self-capacitance of pole is at least roughly the same.

Figure 20 is a kind of flow chart of the computer automation method for design capacitance formula touch sensing electrode pattern. In step sl, selection and the relevant electrode pattern template of electrode pattern.The pattern template defines the figure with following characteristics Case：(a) one group of X electrode has the zeroth order branch extended in the x-direction and multiple higher order branches；(b) one group of Y electrode, It has the zeroth order branch extended along the directions y for being different from the directions x so that the zeroth order branch of X and Y electrode intersects at intersection Point, to form two-dimentional node array, which define touch sensitive regions, this group of Y electrode further includes multiple higher order branches, wherein institute It states at least some of X and Y-branch of higher order and extension is abreast separated by gap each other.It is required electricity in step S2 Pole figure case generates specification.The specification provides：(a) lateral dimension of the touch sensitive regions in the directions x and y；(b) touch sensitive regions In each own multiple nodes in the directions x and y, the quantity of Y and X electrode is corresponded to respectively；(c) at least one area of X and Y electrode Parameter；And the area ratio of the X and Y electrode needed for optional (d).In step s3, this method is by changing electrode pattern Template inside dimension parameter generates electrode pattern, such as iteratively influences the zeroth order of at least one of X and Y electrode electrode At least one of with higher order branch, so that generated electrode pattern meets the specification, the required X and Y electrode Area ratio can be 1 or other value.This method can generate the multiple alternative patterns for meeting the specification, design in this way Person can between them be manually selected based on his or her professional knowledge.

It should be understood that the element in above-mentioned different embodiment can be combined with any desired mode to obtain The modification of disclosed electrode pattern.

Stack arrangement

As an example, the various embodiments specifically stacked of LCD and OLED touch screens will now be described in we.In these implementations In scheme, it should be appreciated that one or more adhesive layers (for example, OCA) can be used for stacking display and touch sensing Layer is combined together, although these are not demonstrated out.In addition, in these embodiments, it should be appreciated that the touch-control Panel is applied for optical clear with being suitable for showing in visible light spectrum area, and to be suitable as the elastic material of touch-control surface Such as made by suitable glass or plastic material.Suitable plastic material includes makrolon (PC) and poly-methyl methacrylate Ester (PMMA).In addition, it is to be understood that embodiment can also be realized by other stacking embodiments, such as It is retouched in US2014/0226089A1 (AtmelCorporation) and US2016/259481A1 (LGElectronicsInc.) The embodiment stated, entire contents have been incorporated by reference into herein.

Figure 21 shows that the sensor of the on-stackLCD embodiments of the disclosure and display stack.On-stack is designed Refer to touch sensing it is the top for being disposed in display and the sub-component with displays separated, it is respectively independent with display Effectively operate.LCD display stacking is started with back light unit, followed by bottom polarizer and be used as thin film transistor (TFT) (TFT) The glassy layer of substrate.TFT and its addressing and other electrodes, referred to as metal, are disposed in the top of the TFT glass together.It answers When understanding, be referred to as metal includes any suitable conductive metal material, typically uses ITO's (i.e. nonmetallic) Situation, because it is transparent and is therefore suitable for display application.For other application, electrode material can be opaque. Next layer is liquid crystal layer, is followed by colour filter.It should be recognized that suitable interval will be provided to keep the design of liquid crystal layer thick Degree.Next there are one the black-matrix layer for enhancing contrast, filter glass is finally top polarizer.It should realize It arrives, can also include additional layer, such as adhesive, coating etc. as needed.Furthermore, it is possible to omit the layer described in some, example Such as black-matrix layer.If display is monochrome, simpler structure is also resulted in.Touch sensing stacking is disposed in Display stack top, and with X electrode be deposited thereon by such as glass material (such as alkali alumino-silicates glass) Or substrate made of the material of plastic material (such as PET) starts.The X electrode can be embedded into the dielectric square of such as adhesive phase In battle array.Dielectric material there are one at the top of the X electrode, followed by Y electrode.It should be recognized that in single layer designs, the substrate Can be the dielectric material, and X and Y electrode can be disposed in thereon, to save two shown layers.Followed by it is optional Decorative layer is followed by touch panel.The touch panel can be glass or plastic material.In addition, the touch panel can be with With for example with the anti-scratch material coating for increasing hardness and/or wearability.

Figure 22 shows that the sensor of the on-cellLCD embodiments of the disclosure and display stack.Term on-cell is Refer to the layer that is stacked using uppermost display of touch sensing, is also filter glass, as the initiation layer of sensor stack, That is the substrate of X electrode.Compared with the on-stack stack designs of Figure 21, others variation is that top polarizer is moved To on the touch sensing layer for X and Y electrode, it reduce the visualitys of touch sensing electrode pattern.

Figure 23 shows that the sensor of the embodiment of the mixing in-cellLCD of the disclosure and display stack.Term in- Cell refers to the fact that touch sensing is more completely integrated in during display stacks, wherein at least one touch sensing Layer is disposed in below the colour filter of display.In particular, some display driving electrodes (provide the VCOM of reference voltage for TFT Electrode) dual function as touch sensing electrode (X electrode) may be implemented, their separation functionally pass through time-multiplexed It realizes, i.e., the described electrode is used to show in partial periodicity and another part in the period is used for touch-control sensing.The dual function It is by carrying out patterning realization to VCOM electrode layers, and in the LCD of not touch sensing, VCOM electrode layers are only Do not have structured coating.In-cell is designed, there is a possibility that two kinds：" single side " is if in-cell- X and Y sensors Electrode layer is all below filter glass；" two-sided " or " mixing " if in-cell- only X and Y sensor electrodes layers wherein one It is a to be moved to below filter glass.In mixing in-cell designs, the electrode layer closest to above the filter glass of touch panel It can be the layer (that is, Y electrode) for sensing in mutual capacitance measurement.It should be recognized that in in-cell designs, driving display The electronic device of device and touch sensing needs are coordinated, so that a single IC is provided for co- controlling display and is touched Control sensor, or if dedicated display IC and touch-control sensing controler IC be retained if, they need exchange data with Ensure to coordinate.

Figure 24 shows that the sensor of the embodiment of another mixing in-cellLCD of the disclosure and display stack.With The stacking of Figure 23 is compared, and X electrode is not integrated with VCOM so that capacitance type sensing measure can with drive parallel display. The X electrode is disposed on colour filter.Although the X electrode is shown as configuring in the upside of colour filter, it can also It is configured in downside.It is furthermore possible to also provide being used to support the individual substrate layer of X electrode.

Figure 25 shows that the sensor of the on-stackOLED embodiments of the disclosure and display stack.The OLED display Stacking starts for use as the glassy layer of thin film transistor (TFT) (TFT) substrate.The TFT and its addressing and other electrodes, referred to as metal, one Act the top for being disposed in the TFT glass.Metal in this layer includes the metal of the anode electrode for driving OLED.It connects down What is come is oled layer and another metal layer for OLED cathodes.It should be recognized that anode and cathode layer can be reversed.Most Afterwards, display stacking is completed with polarizer.For OLED, it is noted that be not usually required to colour filter and filter glass.So And for white light OLED, these layer of meeting is disposed in the top of OLED and in the lower section of metal (cathode) layer.Should also it realize It arrives, can also include additional layer, such as adhesive, coating etc. as needed.Touch sensing stacking is disposed in display The top for the negative electrode layer that device stacks, and started with the substrate that X electrode is deposited on.The X electrode can be embedded into all As adhesive phase dielectric matrix in.Dielectric material there are one at the top of X electrode, followed by Y electrode.Followed by optional decoration Layer, is followed by touch panel.The touch panel can be glass or plastic material.In addition, the touch panel can be with use-case It is coated as having for increasing the anti-scratch material of hardness and/or wearability.

Figure 26 shows that the sensor of the mixing in-cellOLED embodiments of the disclosure and display stack.The OLED is aobvious Show that device stacking starts for use as the glassy layer of thin film transistor (TFT) (TFT) substrate.The TFT and its addressing and other electrodes, it is referred to as golden Belong to, is disposed in the top of the TFT glass together.Metal in this layer includes the gold of the anode electrode for driving OLED Belong to.Another metal layer followed by oled layer and for OLED cathodes.It should be recognized that anode and cathode layer can be run .Display stacking is completed with polarizer, but in this embodiment, polarizer is disposed on touch sensing electrode Side.The advantages of polarizer is placed on touch sensing electrode is that polarizer is partly blinded by touch sensing electricity The pattern of pole will more have any opportunity for user and see otherwise under more miscellaneous lighting conditions and visual angle.Should also it realize It arrives, can include additional layer, such as adhesive, coating etc. as needed.If display is monochromatic, also result in slightly Different structures.Touch sensing stack layer is disposed in the top of the cathode layer of display stacking.Touch sensing stacks the One layer is substrate.Then X and Y electrode are formed in single layer, and the dielectric matrix of such as adhesive phase can be embedded into In.Followed by the above-mentioned polarizer stacked for display, optional decorative layer is followed by touch panel.The touch panel Can be glass or plastic material.In addition, the touch panel can be with for example with for increasing hardness and/or wearability Anti-scratch material coating.Some common modifications of the stacking can be described below.We also note that about above-mentioned mixing in- The general remarks to in-cell designs that cellLCD embodiments carry out are also applied for this in-cellOLED embodiment.

Figure 27 shows that the sensor of the embodiment of another mixing in-cellOLED of the disclosure and display stack.It should Layer structure starts from the glassy layer of the substrate as follow-up TFT layer comprising TFT and its driving electrodes, the driving electrodes packet Include the bifunctional electrodes for the X electrode for the VCOM electrodes of OLED and for touch-control sensing that reference voltage is provided for TFT.Then It is oled layer.Then the dielectric layer of the next substrate for being used as another metal layer, the metal layer include the moon as OLED Pole and in touch sensing with the electrode of the binocular of the Y electrode with sensing.The stacking with：The polarizer of display, optionally Decorative layer and touch panel are completed.We also note that real about above-mentioned mixing in-cellOLED embodiments and in-cellLCD The general remarks designed in-cell for applying example progress are also applied for this in-cellOLED embodiment.

It should be recognized that the embodiment that stacks of any on-stack touch sensings can as do not include display its The basis (i.e. independent touch sensing) of its embodiment, such as the Trackpad of laptop computer or mobile phone are touch-sensitive Dorsal shield panel.

In addition, in any exemplary stack, X and Y electrode layer can be replaced.In addition, in any exemplary stack, X and Y electrode layer can be disposed in simple layer.

Touch screen computing device (or touch sensing equipment without screen) presented herein can be such as mobile phone (intelligence Phone), flat board mobile phone, tablet computer (including professional drawing tablet computer), laptop, personal computer, smart television, Media player, satellite navigation, game machine sell pavilion computer or point of sale device.The equipment can be by one or more The user equipment that a telecommunication standard defines.The equipment can be portable, such as Handheld computing device or fixed.It should Touch screen (or touch sensing without screen) may make up a part for household electrical appliance or other equipment.

Equipment context explanation

Figure 28 A and Figure 28 B are the perspective schematic views of the front and back of hand-held touch screen computing device.

With reference to figure 28A, computing device 100 has smart phone or tablet computer format.Computing device 100 is disposed in shell In body, which has positive (being faced out from Figure 28 A), the back side and the frame for forming the substantially edge of straight line object.It should Front is occupied by touch-control panel type display, combine display 102 (showing that scene includes house, smog and The sun) and touch sensitive regions 103 (being shown with hacures).The touch screen is allowed users to input instructions by gesture and be operated in Application program on computing device, these gestures can be by being referred to as tapping in this technique, i.e., any light over the display Micro- single touch-control elects and other single touch control gestures, such as slides, and arrives multi-point touch gesture, such as is commonly used for and puts Two fingers that are big and reducing and rotate are mediated.It was noticed that herein, so-called gesture refers to the touch control gesture on touch screen. The front be also mounted mechanical keys (or button) 104 and the arbitrary side in mechanical keys 104 two touch sensing keys (or Button) 106,108.The edge of the shell is mounted with that mechanical rocker switch 110 and on/off for volume control switch 112.There are one be embedded in touch screen 102 to provide the tactile layer of touch feedback (having been not shown).

One Front camera 101 for capturing still image or video image is disposed in close to shell top forward On the front in portion, the microphone 105 for capturing audio also adjacent thereto and the loud speaker 107 for exporting audio.

With reference to the rearview of figure 28B, a rearmounted camera 114 for capturing still image or video image is disposed in Position close to the top of the shell towards after.Battery 116 is installed in shell and constitutes power supply (being shown in broken lines).The electricity Source further includes external power supply input socket 118, can be used for for equipment power and be battery charging.With the electricity of device bottom Source input socket 118 side by side there are one for audio output audio jack form aerial lug 120.It can provide More external interfaces include the various ports for physical connection, holder and socket.We are shown using dotted line in two Portion's holder 122,124, they can be used for SIM card and storage card or other SIM cards.The storage card is that a kind of data storage is set It is standby.

With reference to figure 29, it illustrates 100 selected functional units of computing device.Computing device 100 has radio group Part 130, input/output (I/O) component 140, one or more controller associated with one or more processors 160 150 With one or more memories 170, power supply 180, sensor module 190 and external interface 200.Memory 170 is operable to deposit Storage includes the computer applied algorithm (" apps ") 162 of software code partition, which can be loaded into processor 160 And it is executed.Controller 150 may include touch-control sensing controler and display controller, or the touch-control of combination and display control Device processed.

The processor may include be used for such as touch-control sensing, display driving, video processing, voice/audio analysis and/ Or the independent processing unit of the dedicated task of voice/audio synthesis etc.Controller and associated processor and storage utensil There is control computing device and executes the task of computer program stored in memory.Memory can be stored for calculating The computer application formula that is run in equipment and collect data from various I/O equipment.In addition to behaviour associated with application program Except work, controller is commonly used in the integrated operation of control computing device.Controller by said modules handle signal, data, Information etc. inputs or output, and/or operation application program stored in memory, to processing or provides a user appropriate Information and/or function.

Multiple component units 130 include WLAN transceiver, LTE transceivers and GPS module.I/O components 140 include that can show The display of content and a part as graphic user interface, the wherein display can be based on suitable technology, such as liquid Brilliant or Organic Light Emitting Diode, and covering over the display or be formed as display component part location sensitive touch-control Sensor region, as with optionally with other touch sensing regions or button (such as display housing reverse side or On edge (frame)) display combine graphic user interface a part.As previously mentioned, other I/O components are for catching Obtain the preposition and rearmounted camera of static image or video image, the microphone for capturing audio, for exporting raising one's voice for audio Device and the tactile output that offer touch feedback in touch screen is provided.Sensing part includes such as gyroscope, accelerometer, environment Optical sensor, magnetic sensor and temperature sensor.External interface may include the various ports for physical connection and socket, Such as SIM card, wired lan connector, storage card, audio jack socket, USB port etc..

It will be clear for those skilled in the art that without departing from the scope of the present disclosure, can show aforementioned Example property embodiment carries out many improvement and modification.

Claims

1. a kind of device combining capacitance touching control sensor, which is characterized in that described device includes：

One group of X electrode is arranged in below the touch panel, has the zeroth order branch extended in the x-direction；And

One group of Y electrode is arranged in below the touch panel, has the zeroth order branch extended along the directions y for being different from the directions x, So that the zeroth order branch of the X electrode and the zeroth order branch of the Y electrode are intersected with each other in crosspoint, to form two-dimentional node battle array Row, which define the touch sensitive regions on the touch panel, wherein the ratio of width to height of the touch sensitive regions is equal to or more than 4:3、3: 2、8:5、16:9 and 8:At least one of 3,

2. device as described in claim 1, which is characterized in that electrode area is than meeting the ratio of width to height for the touch sensitive regions ± 2%, ± 4%, ± 6%, ± 8%, ± 10%, ± 12%, ± 14%, ± 16% and at least one of ± 18%.

3. device as described in claim 1, which is characterized in that each node and limited by adjacent zeroth order X and Y electrode branch Subregion it is associated, in every sub-regions, the ratio of the area and the area of Y electrode covering of the X electrode covering At least it is approximately identical to the inverse of the ratio of width to height of the touch sensitive regions.

4. device as described in any one of the preceding claims, which is characterized in that

The zeroth order branch has different width in X and Y；

It includes lack conductive material micro- that at least one of X and Y zeroth orders branch, which has internal microstructure, the internal microstructure, Region, the film micro area are surrounded by conductive material；And/or

X and Y zeroth orders branch has internal microstructure, and the internal microstructure includes lacking the film micro area of conductive material, described micro- Region is surrounded by conductive material, wherein different with the ratio of the film micro area in Y-branch in zeroth order X.

5. the device as described in claim 1,2,3 or 4, which is characterized in that X electrode and Y electrode further include respectively the higher of n ranks Rank branch, wherein each branch is limited to the subregion of its development, wherein exponent number n is positive integer, and n-th order is branched into from n-th- 1 rank branch develops and obtains, and to the edge far from node array, each node is associated with four sub-regions.

6. device as claimed in claim 5, which is characterized in that

The higher order branch has different width in X and Y；

The higher order branch has different length in X and Y；

The higher order branch has different quantity in X and Y；

It includes lacking conduction that at least one of higher order branch of the X and Y, which has internal microstructure, the internal microstructure, The film micro area of material, the film micro area are surrounded by conductive material；And/or

The higher order branch of the X and Y has internal microstructure, and the internal microstructure includes lacking the microcell of conductive material Domain, the film micro area are surrounded by conductive material, wherein different with the ratio of the film micro area in Y-branch in the higher order X.

7. such as device described in claim 5 or 6, which is characterized in that in every sub-regions, the higher order X and Y-branch At least some abreast to separate extension by gap each other, gap is suitable for the touch object to touch-control surface described in a percussion Carry out mutual capacitance measurement.

8. the device as described in any one of claim 5-7, which is characterized in that the higher order X and Y-branch of co-extensive distinguish At least one of first rank, second-order and third rank branch including one of X and Y and the first rank of one of Y and X, second At least one of rank and third rank branch.

9. the device as described in any one of claim 5-8, which is characterized in that zeroth order and higher order branching representation X and The macrostructure for the overall electrode pattern that Y electrode is formed in conductive material, wherein the other region setting of the conductive material To fill the gap of the electrode pattern so that the other region of the conductive material keeps being electrically isolated with X and Y electrode.

10. device as described in any one of the preceding claims further includes being configured to and the capacitance touching control sensor one Act the display for operating and being consequently formed touch screen.

11. a kind of manufacturing method for the device combining capacitance touching control sensor, the method includes：

One piece of touch panel is provided, in upside with touch-control surface, in downside with inner surface, the touch panel is by dielectric Material is made；

One group of X electrode is manufactured below the touch panel, the X electrode has the zeroth order branch extended in the x-direction；And

One group of Y electrode is manufactured below the touch panel, the Y electrode has zero extended along the directions y for being different from the directions x Rank branch so that the zeroth order branch of the X electrode and the zeroth order branch of the Y electrode are intersected with each other in crosspoint, to form two Node array is tieed up, which define the touch sensitive regions on the touch panel, wherein the ratio of width to height of the touch sensitive regions is equal to or greatly In 4:3、3:2、8:5、16:9 and 8:At least one of 3,

12. a kind of computer automation method for design capacitance formula touch sensing electrode pattern, the method includes：

（a）One group of X electrode has the zeroth order branch extended in the x-direction and multiple higher order branches；And

（b）One group of Y electrode has the zeroth order branch extended along the directions y for being different from the directions x so that the X and Y electrode Zeroth order branch intersects at crosspoint, and to form two-dimentional node array, which define touch sensitive regions, this group of Y electrode further includes multiple Higher order branch,

Specification, regulation are generated for required electrode pattern：

（a）Lateral dimension of the touch sensitive regions in the directions x and y；

（b）There are the quantity that multiple nodes correspond to Y and X electrode respectively in the touch sensitive regions in the directions x and y；And

（c）At least one area parameters of X and Y electrode；And

13. method as claimed in claim 12, which is characterized in that the required each X electrode covering of the specification The ratio of area and the area of each Y electrode covering is as an area parameters.

14. method as claimed in claim 13, which is characterized in that required ratio is one.

15. the method as described in claim 12,13 or 14, which is characterized in that the specification be in the X and Y electrode extremely A few range for defining required absolute area or region is as an area parameters.

16. such as claim 12 to 15 any one of them method, which is characterized in that the ratio of width to height of the touch sensitive regions be equal to or More than 4:3、3:2、8:5、16:9 and 8:At least one of 3.

17. such as claim 12 to 16 any one of them method, further include：Manufacture is combined with generated electrode pattern Capacitance touching control sensor device.

18. a kind of device combining the capacitance touching control sensor for being connected to touch-control sensing controler, which is characterized in that described Capacitance touching control sensor includes：

The wherein described touch-control sensing controler includes：